Water-heater



F. J. CLIFFORD.

WATER'HEATER.

APPLICATION FILED APR.20, 1920.

1,377,806. Patented May 10,1921.

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FERDINAND JAMES CLIFFORD, OF PATEROS, WASHINGTON, .A SSIGNOR TO FRANK HAMILTON COOPER AND WILLIAM ZENAS COOPER, 0F PATEROS, WASHINGTON.

WATER-HEATER.

Specification of Letters Patent.

Patented May 1o,- 1921.

Application filed April 20, 1920. Serial No. 375,278.

To all whom it may COILGMWl-l Be it known that I, FERDINAND JAMES Okanogan and State of Washington, have invented certain new and useful Improvements in Water-Heaters, of which the following is a specification.

My invention is an improvement in water heaters, and has for its object to provide a device ofthe character specified especially adapted for vaporizing water, and wherein the heating element is interposed in an electrical circuit normally open and adapted to be closed by the unvaporized water, the arrangement being such that when the water is all vaporized the circuit will be broken.

In the drawings:

Figure 1 is a vertical section through a vulcanizing apparatus, having the improved heater;

Fig. 2 is a section at right angles to Fig. 1.

In the present embodiment of the invention the heater is shown in connection with a vulcanizer consisting of a bracket 1 having a central arm 2 and lateral arms 3. The central arm carries a casing 4 whose top is closed by a plug 5 which is threaded into the casing and which has a marginal flange extending over the edge of the casing, as shown.

The terminals 6 and 7 of the circuit are connected to bindin posts 8 and 9, the former of which extends through the side wall of the casing while the latter is connected with the body of the casing, the said body being of metal, as is also the plug 5.

The inner end of the binding post 8 is connected by a stri 10 of conducting material with the heatlng element 11 which is in the form of a plate having a central opening 12. Just above this opening 12 the plug has a depending point 13 which is directly above the opening 12, the center of the point being in axial allnement with the center of the opening.

As is clearly shown, the plate 11 is spaced slightly above the bottom of the casing, and it will be evident that when the water in the casing is high enough to contact with the plate, the circuit will be completed between the plate and the body of the casing, and the water will be heated.

As soon as the water is vaporized, the circuit will be broken and the current W111 .casing, the latter cooperating with the botcease' to flow. Thus as lon as there is water In the casing the heater wi I operate to heat. As soon, however, as there is no more water. 1n the casing, the heater will no longer heat. The temperature and the pressure are automatically controlled by the quantity of water 1n the casing.

Preferably, a safety valve, indicated at 14, 1s provided in connection with the casing, the said valve being arranged in an extension tube 15 1eading from the casing and so arranged that at a predetermined pressure the valve will be opened. The depending point 13 of the plug insures that all the water will pass through the opening in the heating plate, and will not remain on top of the plate until the water runs off.

It will be noticed, referring to Figs. 1 and 2, that the cover 13 is annularly grooved about the point 13, so that in addition to the polnt, the outer edges of the under face of the plug incline downwardly, thus deflecting condensed steam down along the side walls of the casing where it can pass between the plate-11 and the side walls. This spacing of the plate 11 from the side walls permits all of the water of condensation to pass down below the plate. That is, the top or cover 5 is so arranged that all of the water of condensation will be deflected to the point 13 or to the side walls of the casing.

Without the point on the plug and the openmg 1n the heating plate the pressure would fluctuate. With the opening and the point the pressure is steady.

Each of the arms 3 of the bracket carries a nut 16 and through each of these nuts. there is threaded a screw 17. Clamping plates 18 and 19 are arranged above and below the tom of the casing and the former with the top of the plug, and by means of these clamping plates a rubber tire, for instance, may be clamped in place to be vulcanized.

The bracket has an eye 20 for permitting 100- it to be connected to a support.

.While the improvement is shown in connection with a vulcanizer it is obvious that it might be used with any other form of heater.

I claim:

1. A water heater comprising a casing, an electrode in the casing, said electrode being spaced above the bottom of the casing to cause the circuit to b9 broken when there is 110 no water between the electrode and the bottom 0]": the casing, said electrode having a central opening and the top of the casing having a depending point at the center for conducting the water to the opening, said point and opening being in axial alinement, a support for the casing having cuts above and below the casing, clamping plates cooperating with the upper and lower faces of the casing, and screws threaded through the nuts and engaging the plates.

2. A water heater comprising a casing, an electrode in the casing, said electrode being spaced above the bottom of the casing to cause the circuit to be broken when there is no water between the electrode and the bottom of the casing, said electrode havin a central opening and the top of the casing having a depending point at the center for conducting the water to the opening, said point and opening being in axial alinement.

3. A water heater comprising a casing, an electrode in the casing and spaced slightly above the bottom of the casing so that a small amount of water in the casing will evasoe close the circuit and the circuit will be broken when there is no water in the casing,

said electrode being in the form of a plate extending transversely of the casing, and means for conducting the products of condensation deposited on the top of the easing to the center of the plate.

4:. A water heater comprising a casing, an electrode in the casing and spaced slightly above the bottom of the casing so that a small amount of Water in the casing will close the circuit and the circuit will be broken when there is no water in the casing, said electrode being in the form of a plate extending transversely of the casing.

5. A water heater comprising a casing, an electrode in the casing in the form of a plate spaced slightly above the bottom of the casing and spaced also at its edges from the casing walls, the top of the casing inclining downwardly at its outer edge to the side walls of the casing to deflect the water of condensation down along the side walls and between the side walls and the late.

FERDINAND JAMES CLIFF RD. 

